Search results for "test"

showing 10 items of 19001 documents

Assessment of Skeletal Muscle Microperfusion Using MRI

2013

Blood oxygenation level-dependent (BOLD) MRI, arterial spin labeling (ASL) and dynamic contrast enhancement (DCE) are current magnetic resonance imaging (MRI) techniques allowing the non-invasive functional assessment of peripheral microvasculature in healthy and diseased individuals. The functional imaging of skeletal muscle microvasculature helps to understand muscular and vascular physiology and alterations of microcirculation under certain pathological conditions such as peripheral arterial occlusive disease, diabetes mellitus, chronic compartment syndrome and rheumatic disorders. BOLD MRI uses blood as an endogenous contrast agent provided by the different magnetic properties of oxy- a…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySkeletal muscleMagnetic resonance imagingmedicine.diseasePeripheralMicrocirculationFunctional imagingmedicine.anatomical_structureInternal medicineDiabetes mellitusDynamic contrast-enhanced MRICardiologyMedicinebusinessPerfusion
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Information-Theoretic Analysis of Cardiorespiratory Interactions during Apneic Events in Sleep

2020

In this work, measures of information dynamics are used to describe the dynamics of heart rate and cardiorespiratory interaction associated to sleep breathing disorders. In a large group of patients reporting repeated episodes of hypopneas, apneas (central, obstructive, mixed) and respiratory effort related arousals (RERA), we computed information storage of heart period variability and information transfer from heart period to airflow amplitude before, during and after each event. We find a general tendency to decrease of the information storage, suggesting higher complexity of the cardiac dynamics. The information transfer decreased during apneic events, and increased during milder disord…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySleep apneasSleep apneaHeart period variabilityCardiorespiratory fitnessmedicine.diseaseInternal medicineHeart rateSettore ING-INF/06 - Bioingegneria Elettronica E InformaticaCardiologyRespiratory effortMedicineInformation dynamicsVagal tonebusinessElectrocardiography
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Intavenous high dose furosemide plus small volume of hypertonic saline solutions (HSS) versus seriated paracentesis in treatment of refractory ascite…

2008

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySmall volumeFurosemideHypertonic salineSurgeryAnesthesiaInternal MedicineParacentesismedicineRefractory ascitesbusinessmedicine.drug
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Significance of ultrasound for the diagnosis of hypertrophic pyloric stenosis

1986

The sonographic features of hypertrophic pyloric stenosis (HPS) were evaluated in a 5-year prospective study (1981–1985) at the University Clinic of Pediatric Surgery in Mainz. In 37 cases real-time ultrasound was performed preoperatively to measure muscle thickness, diameter, and length of the pylorus; the recorded values were compared with those of a control group. Muscular wall thickness proved to be the most reliable parameter, while pyloric canal length was the most difficult measurement to obtain. Diameter alone was not adequate to establish the sonographic diagnosis, which depends on the individually and functionally different luminal width and submucosal thickness. Significant sonog…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industryStomachUltrasoundRefluxPhysical examinationGeneral MedicinePylorusSurgerymedicine.anatomical_structurePediatrics Perinatology and Child HealthPediatric surgerymedicineAbdomenSurgeryRadiologybusinessHypertrophic Pyloric StenosisPediatric Surgery International
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A physically demanding occupation predicts premature retirement among patients with erosive arthritis

1998

The aim of this study was to assess the intensity of exercise and energy expenditure of patients with recent onset inflammatory arthritis in their occupational environments and leisure time physical activities. The exercise intensities and energy expenditures of 41 early inflammatory arthritis patients and 20 matched healthy controls were assessed in occupational work and in leisure time physical activities during a 3.5-year follow-up using metabolic unit values. Disease activity was assessed by erythrocyte sedimentation rate and Ritchie's articular index. Subjective disability was assessed by the Stanford Health Assessment Questionnaire and the extent of joint damage on X-rays of the hands…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industryStrength trainingInflammatory arthritisPhysical Therapy Sports Therapy and RehabilitationEarly Inflammatory Arthritismedicine.diseaseOccupational workErosive arthritisPhysical medicine and rehabilitationHealth assessmentErythrocyte sedimentation ratemedicinePhysical therapybusinessRecent onsetPhysiotherapy Theory and Practice
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Diagnosis of Tinnitus: Neurological Examination

2011

1. There is an urgent need for a set of assessment methods to be agreed upon and utilized by the international tinnitus research community. 2. Neurological examination of tinnitus patients is essential to achieve a good diagnostic approach to the different forms of objective and subjective tinnitus. 3. This chapter summarizes the neurological examination in tinnitus, including the protocol used in the authors’ tinnitus clinic, which is based on the consensus of the Tinnitus Research Initiative (TRI).

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySubjective tinnitusNeurological examinationAudiologyResearch initiativeDoppler sonographyResearch communityAssessment methodsotorhinolaryngologic diseasesmedicinemedicine.symptombusinessTinnitus
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Parametric assessment of myocardial perfusion by densitometric evaluation of digital subtraction coronary angiograms: a comparison with tomographic T…

2002

Densitometric results about local myocardial perfusion are compared with those derived from a quantitative analysis of TL-201 single photon emission computer tomograms (TL-201 SPECT). Ten patients underwent conventional TL-201 SPECT at rest and after maximum bicycle stress and dipyridamole infusion the day prior to the investigation. SPECT was applied to provide improved spatial resolution for the detection of perfusion abnormalities. During the catheterization procedure four digital subtraction coronary angiograms were performed, two of the left and two of the right coronary artery both before and after pharmacologically induced hyperemia by intracoronary papaverine. The densitometric para…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySubtractionSingle-photon emission computed tomographyScintigraphyDipyridamoleCatheterization procedureRight coronary arterymedicine.arteryAngiographymedicineRadiologybusinessNuclear medicinePerfusionmedicine.drug[1990] Proceedings Computers in Cardiology
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P275 Development and reliability of the new endoscopic virtual chromoendoscopy score: the PICaSSO score (the Paddington International Virtual Chromoe…

2017

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySurrogate endpointGastroenterologyGeneral Medicinemedicine.diseaseUlcerative colitisEndoscopyChromoendoscopymedicineRadiologybusinessReliability (statistics)Journal of Crohn's and Colitis
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Is x-ray compulsory in pubic symphysis diastasis diagnosis?

2013

SirWe read with great interest your case of postpartum symphy-sis pubis separation (1). We would like to present a case ofpubic symphysis diastasis that we diagnosed with a differentapproach.A 36-year-old gravida 1 para 0 at 39.6 weeks’ gestation wasadmitted with the onset of spontaneous contraction. After threehours and 18 min she delivered a 3170 g baby without compli-cations.Three hours after delivery, she complained of severe pain inthe symphysis pubic region. On examination, there was localtenderness in that region. We performed an ultrasound exami-nation, which revealed a 15.2-mm gap in the region of the sym-physis pubis (Figure 1), diagnosed as pubic symphysis diastasis.She was given…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industrySymphysisPubic Symphysis Diastasismedicine.medical_treatmentUltrasoundObstetrics and GynecologyPubic symphysisGeneral Medicinemedicine.diseaseBed restPalpationSurgerymedicine.anatomical_structureDiastasisMedicineOutpatient clinicpubic symphysis diastasisbusiness
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A T2* MRI Prospective Survey on Heart and Liver Iron In Thalassemia Major Patients Treated with Deferasirox Versus Deferiprone and Desferrioxamine In…

2010

Abstract Abstract 4267 Introduction: Most deaths in thalassemia major (TM) result from cardiac complications due to iron overload. In thalassaemia available three iron chelation regimes in monotherapy may achieve different changes in cardiac iron and function and liver iron. No data are available in literature about prospective comparisons on cardiac iron and function and liver iron in TM patients treated with deferasirox (DFX) versus deferiprone (DFP) and desferrioxamine (DFO) in monotherapy. Magnetic Resonance (MR) is the unique non invasive suitable technique to evaluated quantitatively this issue. The aim of this multi-centre study was to assess prospectively in the clinical practice th…

medicine.medical_specialtymedicine.diagnostic_testbusiness.industryThalassemiaImmunologyDeferasiroxMagnetic resonance imagingCell BiologyHematologymedicine.diseaseBiochemistryGastroenterologySurgerychemistry.chemical_compoundchemistryInternal medicineMedicineLiver ironMultisliceSiderosisbusinessDeferiproneProspective surveymedicine.drug
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